Dyeing and finishing process of modified polyester and polyester and spandex blended fabric

The invention provides a dyeing and finishing process of modified terylene and terylene and spandex blended fabric, which comprises the following steps: performing one-step oil removal and cloth drying, surface grinding, pre-shaping, dyeing, bottom grabbing and shaping on the modified terylene and terylene and spandex blended fabric to obtain the dyed and finished modified terylene and terylene and spandex blended fabric. According to the dyeing and finishing process, surface grinding treatment is carried out before presetting, bottom grabbing is carried out before setting, and meanwhile through the specific dyeing process, the blended fabric is stable in size, comfortable in hand feeling, good in dyeing effect and not prone to fading; and through one-step oil removal and cloth drying treatment, resources are saved. 本发明提供了一种改性涤纶、涤纶和氨纶混纺织物的染整工艺，所述染整工艺包括以下步骤：对改性涤纶、涤纶和氨纶混纺织物进行一步法除油干布、磨面、预定型、染色、抓底和定型，得到染整后的改性涤纶、涤纶和氨纶混纺织物。本发明中，所述染整工艺通过在预定型前进行磨面处理，在定型前进行抓底，同时通过特定的染色工艺，使得所述混纺织物尺寸稳定、手感舒适、染色效果好，不易掉色；并且通过一步除油干布处理，节约资源。